In an upper limb prosthetic system Mode Selection gives the user the ability to utilize one or two input signals to control more than one prosthetic device. Mode Selection is defined here as the means by which a user shifts control to the different electric devices in their prosthetic system. Mode selection has been done for many years in several forms, each of which has a benefit to the user. The simplest mode selection scheme uses a simple switch. Other types involve the use of myoelectric signals that cross a specific threshold, or a rapid co-activation of two myoelectric signals to perform the mode selection. This latter method of mode selection has become a basic cornerstone for mode selection. However, the performance of the prosthesis must match the desired goals of the user. If such a technique cannot be mastered then other approaches must be made available.